How would you go about getting a Neumann U47 ?

[elmolemon]

If you have the knowledge high quality raw material you will be able to do it just as good or better. The microphone bodies etc at the cheap end of DIY are often very resonant. The cheap capsules I've tried sound way off.

Can you recommend a way to deal with resonant bodies in a tube microphone? I recently received a U47 type body from Aliexpress and the body is quite resonant when I tap on it.

 

[Barry Hufker]

Suppressing body resonance has been discussed in other threads. I'm sure you'll find a solution with a forum search. Several solutions, which I don't remember, were offered.

 

[Tubetec]

The shockmount cradles with a sprung clamps lined with felt are quite effective for damping the mic body .

 

[elmolemon]

Suppressing body resonance has been discussed in other threads. I'm sure you'll find a solution with a forum search. Several solutions, which I don't remember, were offered.

Thanks. I‘ll search other threads for solutions.

 

[elmolemon]

The shockmount cradles with a sprung clamps lined with felt are quite effective for damping the mic body .

This makes so much sense! I only tried tapping on the mic body without the shock mount. But I remember that when I tried the shock mount with the body, it had a firm grip. Thanks!

 

[Cqwet Dbdfte]

https://www.worldradiohistory.com/A...-Recording-Engineer/80s/Recording-1980-02.pdf
I found many answers here. Interesting read(s).
Is "line level" mike signalling desirable?
I would think a stronger signal would be less affected by noise, and cabling effects. The Article herein by Coe and Lubin (p.92) and has some level numbers I was looking for. Their choice of OP amp not so hot, maybe OK 43 years ago.

 

[gyraf]

This article also mentions the possibility that the reason we like the VF14 could be its microphonics..

/Jakob E.

 

[Gus]

This article also mentions the possibility that the reason we like the VF14 could be its microphonics..

/Jakob E.

Wow
Page 92 in the PDF, 94 in the magazine with a boosted output stage 741.
I guess it was some old use it as a tool microphone back them

 

[mpaavola]

I purchased the V-47 from www.microphone-parts.com. I wouldn't recommend the build for anyone who's first attempt it is to build. There are some intricate steps involved. Steps where you could possibly connect two points where THEY CAN'T be connected without damage. Also attaching the capsule on top was fraught with discomfort and nervousness.

They results were absolutely fantastic. You can't even tell the difference between the real deal and the new U-47 I DIY'd. I also created the electrical flow diagram, and 3d modeled the circuit board in KiCAD down to the exact milimeter. This way I can make any alterations to the circuit and have it ordered and ready to be put into a new mic capsule.
I am both an Audio Engineer (#2nd best music school in my country), and an electrical engineer. I have also developed the ability to 'see' sound through synthesia.

I realized why one of the first available units to DIY is the U-47, so as to reward the DIY, with the best damn vocal mic out there.
I paid $1050 USD, for a $5500 microphone. What's missing? Some of the build quality (it won't take as many drops on the floor as an actual Neuman), no warranty, no return feature. If you mess it up, you messed it up.

Although I might add that I used a 1073 pre-amp and HIGH quality DAC/ADC from Mackie.

 

[Cqwet Dbdfte]

Wow
Page 92 in the PDF, 92 in the magazine with a boosted output stage 741.
I guess it was some old use it as a tool microphone back them

Those guys preferred line level rather than the "hot" U47's 20mV output

 

[Barry Hufker]

It's my understanding the 741 is not a very good opamp (although may have been decent for its time). What a terrible thing to do to such a fine microphone...

 

[Cqwet Dbdfte]

https://electronics.stackexchange.com/questions/304521/reasons-not-to-use-a-741-op-amp

 

[LevinGuitar]

I purchased the V-47 from www.microphone-parts.com. I wouldn't recommend the build for anyone who's first attempt it is to build. There are some intricate steps involved. Steps where you could possibly connect two points where THEY CAN'T be connected without damage. Also attaching the capsule on top was fraught with discomfort and nervousness.

They results were absolutely fantastic. You can't even tell the difference between the real deal and the new U-47 I DIY'd. I also created the electrical flow diagram, and 3d modeled the circuit board in KiCAD down to the exact milimeter. This way I can make any alterations to the circuit and have it ordered and ready to be put into a new mic capsule.
I am both an Audio Engineer (#2nd best music school in my country), and an electrical engineer. I have also developed the ability to 'see' sound through synthesia.

I realized why one of the first available units to DIY is the U-47, so as to reward the DIY, with the best damn vocal mic out there.
I paid $1050 USD, for a $5500 microphone. What's missing? Some of the build quality (it won't take as many drops on the floor as an actual Neuman), no warranty, no return feature. If you mess it up, you messed it up.

Although I might add that I used a 1073 pre-amp and HIGH quality DAC/ADC from Mackie.

Not sure if this is an example of a bot that were discussed here, but what will be the difference with buying a stock 47 recreation like warm audio or something similar on the economy side?

 

[Migs 31]

“ I have also developed the ability to 'see' sound through synthesia.”

A bit off topic (Not the Neumann U47)
But could you elaborate/explain a bit ?

I’m sure our fellow GDIY members are curious about this development too.
M